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	Estimation of Poisson intensity in the presence of dead time
	He, SY ; Yang, GL ; Fang, KT ; Widmann, JF
	2005
关键词	estimation incomplete data interarrival time phase Doppler interferometry Poisson process residual lifetime spray SPRAY ANALYZER
英文摘要	Phase Doppler interferometry (PDI) is a nonintrusive technique frequently used to obtain information about spray characteristics. Understanding spray characteristics is of critical importance in many areas of science, including liquid fuel spray combustion, spray coatings, fire suppression, and pesticides. PDI measures the size and velocity of individual droplets in a spray. Due to the design of the instrument, recordings of the PDI contain gaps, called dead times. The presence of recurring dead times greatly complicates estimation of the diffusion rate of the droplets. Modeling the spray process as a homogeneous Poisson process, we construct consistent and asymptotic normal estimators of the diffusion rate (Poisson intensity) under various conditions. Simulation produced a good agreement between our estimators (in the presence of dead time) and the maximum likelihood estimates obtained without dead time. We use experimental data to illustrate the estimation method.; Statistics & Probability; SCI(E); 1; ARTICLE; 470; 669-679; 100
语种	英语
出处	SCI
出版者	journal of the american statistical association
内容类型	其他
源URL	[http://hdl.handle.net/20.500.11897/314995]
专题	数学科学学院
推荐引用方式 GB/T 7714	He, SY,Yang, GL,Fang, KT,et al. Estimation of Poisson intensity in the presence of dead time. 2005-01-01.

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